It appears the site couldn't handle HN traffic or maybe the site owner took it down. Regardless, a project like this needs a lot of thought put into it to be something that people can rely on during times of crisis.
If it can't handle a surge in traffic from HN, it won't be able to handle a surge during natural disasters.
It's working for me after 16 minutes of your comment & someone else mentions how it works after 10 minutes of your comment.
Works for me 10 minutes after your post. I'm happy to be part of the unintended load test.